Registered firefighters 1, 2, and 3 equipment contractors
Registered electrical contractor, registered plumbing contractor
Registered minor works contractor (Levels 2 and 3)
Competent persons for mandatory window inspection programs

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Since 1984, Maysun Engineering Company Limited has been providing a wide range of engineering and maintenance services for clients in Hong Kong and Macau, as below:


  1. Fire Services Systems ( including Sprinkler System, Automatic Fire Alarm System, Fire Hydrant and Hose Reel System, Foam System, Gas Detection System, Gaseous Suppression Systems and more )
  2. Mechanical Ventilation & Air Conditioning Systems ( including Refrigeration System)
  3. Electrical & Electronic System ( including Extra Low Voltage )
  4. Plumbing and Drainage System
  5. Public Announcement System


We undertake engineering design, supply, installation, and maintenance work for large-scale commercial and industrial projects such as Hong Kong Housing Authority Department, Hong Kong Housing Society Department, Tunnel, Dockyard, Hospitals, Electrical and Mechanical Services Department, Data Centre and more. Our management team is well-qualified and skillful, and we assure the provision of reliable technical support.

Maysun is a distributor for renowned products of Honeywell (Fire Services Systems, Public Address and Voice Alarm Systems….etc) and Kidde Fire Protection (FM200, CO2 & NOVEC 1230 Gaseous Suppression Systems….etc.), and thus, has attained a comprehensive sales network. We commit to providing the best maintenance service in Hong Kong and Macau; therefore, we offer a 24-hour service for all of our products in the case of emergencies.

Our company has an exceptional management team with over 34 years of experience in the industry, and provides service to a variety of clients. We are proud to say that Maysun Engineering Company Limited is the ideal option if you require a complete engineering and maintenance service.